034SPI vs SlugMarket
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
034SPI
This app allows users to flash their car's ECU/TCU tunes, configure live data displays, and record data logs for analysis. It also provides diagnostic support tools like reading and clearing DTC codes.
- Flash ECU/TCU tunes
- Configure live data displays
- High-speed data logging
- Upload logs to server
- Read and clear DTCs
- View emissions monitor status
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Designed for use on iPhone/iOS as well as Apple Silicon-equipped laptops (M1, M2, M3), 034SPI allows you to easily flash your car, change fuel maps, configure live data displays, record and submit data logs to 034Motorsport's Tuning Support team, and utilize diagnostic support tools such as DTC/CEL code read/clear and more! Available now for use with any Dynamic+ ECU or TCU tune and the latest Dynamic+ End User Flashing Dongle (May 2023 & Newer)! Full App Features: Complete Any ECU Or TCU Tune flash Quickly Flash Different Fuel Octane Or Transmission Files Flash ECU/TCU Using Mobile Device's Internet Connection Enhanced Flashing Protocol Protections For Increased Flashing Stability User-Configurable Live Data Displays Dozens Of Defined Variables Available Multiple Display Types Available for Live Dt High-Speed Data Logging Of Pre-Defined Variables Easy Upload Of Logs To 034Motorsport Server Data Log Analysis Services Available Free Of Charge Read & Clear DTCs On ECU & TCU View Emissions Monitor Statuses Perform Adaptations/Recalibrations* Throttle Body Adaptation Fuel Tank Drain *Available for limited platforms, coverage expanding regularly
SlugMarket
A verified marketplace for UC Santa Cruz students to buy, sell, and discover items and housing. Connect with other students through in-app messaging and manage your listings easily. Offers a safer, more focused experience than general marketplaces.
- Browse student listings
- Create and manage listings
- In-app messaging
- Explore housing and subleases
- Verified student profiles
- Notifications for messages and listings
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SlugMarket is a verified UCSC student marketplace built for the Santa Cruz campus community. Buy, sell, and discover student listings in one place. Students can post items, browse campus listings, message sellers, manage their own posts, and explore housing and sublease opportunities. What you can do with SlugMarket: • Browse student listings near UCSC • Create listings with photos, price, condition, and location • Message sellers directly in the app • Save time with a campus-focused marketplace • Mark listings as sold, edit posts, or delete them • Explore housing and sublease posts • Receive notifications for messages and new listings • Use verified student profiles for a safer experience SlugMarket is designed to be faster than group chats, more focused than Facebook Marketplace, and more trusted than random public listings. Built for UCSC students.
Screenshots
Verdict
The clearest difference is rating: 034SPI at 4.2 against SlugMarket's 3.0. 034SPI also leads on ratings volume (43 vs 2) and iOS requirement (15.0 vs 17.0). SlugMarket's advantage is update cadence (every 2 days vs every 2 weeks). On price, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
034SPI holds the better App Store score, 4.2 against 3.0. That said, the two scores are not equally well evidenced: 034SPI has 43 ratings behind it against 2, so its average is the more settled of the two.
034SPI ships an update every 2 weeks, SlugMarket every 2 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | 034SPI | SlugMarket |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (43 ratings) — better | 3.0 (2 ratings) |
| Positive reviews | 55.0% of reviews | — |
| Number of ratings | 43 — better | 2 |
| Update frequency | Every 2 weeks | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 126 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | 034Motorsport | Mukund Ojha |
Customer experience
034SPI
SlugMarket
In-app purchases
034SPI
No in-app purchases
SlugMarket
No in-app purchases
